* {
  padding: 0;
  margin: 0;
  list-style: none;
  text-decoration: none;
  color: #fff;
}

body {
  background: url(../img/bg.jpg);
  background-size: 100%;
  font-size: 8px;
}

div {
  box-sizing: border-box;
}

.bigBox {
  width: 100%;
  height: 100vh;
}

.bigBox .header_titleBox {
  width: 100%;
  height: 90px;
  background: url(../img/title.png);
  background-size: 100%;
  background-repeat: no-repeat;
  text-align: center;
  line-height: 80px;
  color: #fff;
  font-size: 38px;
}

.bigBox .subjectBox {
  width: 100%;
  height: calc(100% - 100px);
  display: flex;
  justify-content: space-between;
  overflow: hidden;
}

.bigBox .subjectBox .leftBox {
  width: 27%;
  height: 100%;
  padding: 15px 20px 0 20px;
  position: relative;
}

.bigBox .subjectBox .leftBox .item_title_none1 {
  position: absolute;
  top: 0px;
  left: 30%;
}

.bigBox .subjectBox .leftBox .item_title_none2 {
  position: absolute;
  top: 260px;
  left: 30%;
}

.bigBox .subjectBox .leftBox .item_title {
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}

.bigBox .subjectBox .leftBox .left_item1 {
  width: 100%;
  padding-top: 10px;
  height: 240px;
  border: 1px solid #4788fb;
  position: relative;
}

.bigBox .subjectBox .leftBox .left_item1 .item_title {
  position: absolute;
  top: -15px;
  left: 35%;
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}

.bigBox .subjectBox .leftBox .left_item2 {
  padding-top: 15px;
  margin: 20px 0;
}

.bigBox .subjectBox .leftBox .left_item3 {
  height: 270px;
}

.bigBox .subjectBox .leftBox .left_item3 table {
  border-collapse: collapse;
  width: 100%;
}

.bigBox .subjectBox .leftBox .left_item3 table tr {
  line-height: 50px;
  text-align: center;
}

.bigBox .subjectBox .leftBox .left_item3 table tr th {
  color: aqua;
}

.bigBox .subjectBox .leftBox .left_item3 table .bag {
  width: 100%;
  line-height: 30px;
  background-color: #21498d;
}

.bigBox .subjectBox .centerBox {
  flex: 1;
  height: 100%;
  padding: 15px 5px 5px 0;
  position: relative;
}

.bigBox .subjectBox .centerBox .center_item1 {
  position: relative;
  border: 1px solid #4788fb;
  width: 100%;
  height: 500px;
}

.bigBox .subjectBox .centerBox .center_item1 .item_title {
  position: absolute;
  top: -15px;
  left: 38%;
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}

.bigBox .subjectBox .centerBox .center_item2 {
  height: 270px;
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left {
  width: 49%;
  height: 270px;
  border: 1px solid #4788fb;
  position: relative;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left .item_title {
  position: absolute;
  top: -15px;
  left: 30%;
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left table {
  border-collapse: collapse;
  width: 100%;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left table tr {
  line-height: 50px;
  text-align: center;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left table tr th {
  color: aqua;
}

.bigBox .subjectBox .centerBox .center_item2 .item2_left table .bag {
  width: 100%;
  line-height: 30px;
  background-color: #21498d;
}

.bigBox .subjectBox .centerBox .item_title {
  position: absolute;
  top: 0px;
  left: 40%;
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}

.bigBox .subjectBox .rightBox {
  width: 27%;
  height: 100%;
  position: relative;
}

.bigBox .subjectBox .rightBox .right_zheXian {
  width: 100%;
  padding-top: 20px;
  height: 240px;
}

.bigBox .subjectBox .rightBox .item_title_none4 {
  position: absolute;
  top: 0px;
  left: 30%;
}

.bigBox .subjectBox .rightBox .item_title {
  font-size: 15px;
  padding: 4px 20px;
  border-radius: 20px;
  background-color: #2c58a6;
}
